TLVH431CDBZR Equivalent & Substitute Parts

Part Overview

The TLVH431CDBZR is an adjustable shunt voltage reference IC manufactured by Texas Instruments, designed for precision voltage regulation applications in power management circuits. This component operates with an adjustable output range from 1.24V to 18V and delivers up to 70mA output current with ±1.5% tolerance. The device is actively produced and widely used in analog and mixed-signal applications requiring stable reference voltages. Substitute parts are identified to provide design flexibility, alternative sourcing options, and compatibility with varying system requirements while maintaining core electrical and mechanical specifications.

Substiute Parts

TLVH431CDBZR

Texas InstrumentsIn Stock: 9191TLVH431CDBZR Datasheet

Current PartRFQ

TLVH431LIL3T

STMicroelectronicsIn Stock: 3445TLVH431LIL3T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLVH431CDBZR are qualified based on the following critical parameters that determine functional interchangeability:

• Reference Type: Shunt voltage reference architecture
• Output Type: Adjustable output voltage capability
• Voltage Output Range: Minimum 1.24V, maximum 18V
• Tolerance: ±1.5% output accuracy
• Package: SOT-23-3 surface mount package
• Mounting: Surface mount technology compatibility
• Product Status: Active manufacturing status
• Compliance: ROHS3 and REACH compliance

The TLVH431LIL3T from STMicroelectronics meets all core substitution criteria. While this part exhibits differences in output current capacity (60mA versus 70mA), temperature coefficient specification, cathode current, and operating temperature range, these variations remain within acceptable parameters for applications where the TLVH431CDBZR operates. The substitute maintains identical voltage output range, tolerance, reference type, output type, and package configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the TLVH431CDBZR and TLVH431LIL3T are active products with ROHS3 compliance and unlimited moisture sensitivity ratings, qualifying them for equivalent use in power management applications. Selection between these parts depends on application-specific requirements:

The TLVH431CDBZR provides 70mA output current capacity and operates within the 0°C to 70°C temperature range, suitable for standard industrial and consumer applications with defined thermal boundaries.

The TLVH431LIL3T offers extended operating temperature range (-40°C to 125°C), making it applicable to automotive, industrial, and wide-temperature-range applications. The 60mA output current capacity remains sufficient for most reference voltage applications where the primary function is voltage regulation rather than high-current sourcing. The specified temperature coefficient (100ppm/°C) and noise characteristics (30mVrms) provide additional performance data for precision circuit design.

Both parts maintain identical voltage output specifications (1.24V to 18V), tolerance (±1.5%), and SOT-23-3 package configuration, ensuring direct pin-compatible substitution in PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can TLVH431LIL3T directly replace TLVH431CDBZR in existing designs?

A: Yes, both parts are pin-compatible in SOT-23-3 packages and maintain identical voltage output range (1.24V to 18V) and tolerance (±1.5%). The primary design consideration is output current capacity: TLVH431LIL3T provides 60mA versus 70mA for TLVH431CDBZR. Verify that circuit current requirements do not exceed 60mA.

Q: What are the key differences between these substitute parts?

A: The TLVH431LIL3T features an extended operating temperature range (-40°C to 125°C) compared to TLVH431CDBZR (0°C to 70°C), higher cathode current (200µA versus 100µA), and specified temperature coefficient and noise characteristics. Output current is reduced from 70mA to 60mA.

Q: Are both parts suitable for automotive applications?

A: The TLVH431LIL3T with its -40°C to 125°C operating range is specified for automotive temperature requirements. The TLVH431CDBZR is limited to 0°C to 70°C and is not recommended for automotive use without thermal management verification.

Q: Do packaging differences affect substitution?

A: Both parts use identical SOT-23-3 surface mount packages. TLVH431CDBZR is supplied in Cut Tape (CT) and Digi-Reel packaging, while TLVH431LIL3T is supplied in Tape & Reel (TR) format. This affects procurement and handling but does not impact electrical or mechanical compatibility.

Q: What compliance certifications apply to both parts?

A: Both TLVH431CDBZR and TLVH431LIL3T are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (unlimited moisture sensitivity). Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.